Mobbis herman



M. BERMAN VENTILATING FAN June 7, 1932.

Original Filed Aug. 7, 192a Reisaued June 7, 1932 OFFICE MORRIS BEBMAN,OF BROOKLYN, NEW YORK vnn'rrnarme FAN Original No..1,888,809, datedDecember 29, 1981, Serial 3N0. 297,922, filed August 7, 1928.Application for reissueflled February 2, 1932. Serial No. 591,683.

This invention relates to ventilating apparatus. It is particularlydirected to a combined cooling and air circulating device forcirculating cooled air in rooms and for the 6 like purposes.

An object of this invention is to provide in apparatus of the characterdescribed, wherein the air is cooled prior to circulation, a devicehaving a fan, refrigerating means including a compressor, and a singlemotive means for operating the entire device, mounted on a single shaft,the device furthermore being arranged for oscillating movement as a unitwhereby a constant stream of cooled air may be effectively circulatedover a large Y the casings 40 and 24, 1s a rotatable shaft 28 area.

A further object of this invention is to provide a neat, compact andunitary device of the character described which shall comprisecomparatively few and simple parts,

he of economical construction and yet positive and smooth in operationand practical and eflicieut to a high degree in use.

Other objects of this invention will inpart be obvious and in parthereinafter pointed out.

-The invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts, which will beexemplified in the construction hereinafter described, and of which thescope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the variouspossible illustrative embodiments of this invention,

Fig. 1 is a front elevational view of a device embodying the inventionandwherein the evaporating coil is arranged on both sides of the fan;

Fig. 2 is a rear elevational view of said device with parts broken awayto show the interior construction;

Fig. 3 is a cross-sectional view taken on line3-3ofFig.1;-

a Fig. 4 is a partial cross-sectional view of the fan casing andillustrating a modified construction wherein the evaporating coil isarranged only behind the fan; and

enlarged annular section 24, to the front of which there is attached afan guard 24a. The rear portion of casing 40 is covered by end wall 7 Apair of. partition members 31, 310. made preferably of heat insulatingma-v terial, divide the casing 40 into three compartments. Axiallydisposed with respect to extending thru suitable bearing openings in endwall 7 and artitions 31, 31a, Said shaft extends beyon the end wall 7and attached to said extending portion is a vertically disposed bevelgear 10. Rotatably mounted in a pair of lugs 41 extending rearwardl fromthe casing wall 7 is a vertical shaft 1 provided with a bevel gear 10aat the upper end thereof, meshing with said bevel ear 10. Attached tothe lower end of said shaft 11 is an eccentric 42 to which is preferably.attached a link 13 pivoted to said eccentric as at 12, said link 13being connected to the base 16 for producing an oscillating motion forthe casing C in the well known manner in I the electric fan art.

Mounted within the compartment formed between partition 31 and end wall7 is a fan 3 adapted to direct a current of air rearwardly. Mounted onsaid shaft 28 in the compartment formed between partitions 31, 31a is arotary compressor 6 of ordinary construction adapted to compressvolatile liquids such as ordinarily used in machines employing rotarycompressors. .A motor 5 may be mounted within the compartment formedbetween the partition 31a and the large casing portion 24, said motorbeing of the ordinary construction and having the armature thereofattached to said axial shaft 28. Attached to the outer end of said shaft28 and disposed within thecasing portion 24 is a fan 1 adapted tocirculate a current of air forwardly as the motor 5 operates.

the compressor shaft with. the

2, 8 with the The electric power controlling means for the motor 5 maybe of ordinary construction such as in the usual electric fan. A switchhandle 17 may be provided in the base 16, and a rheostat 30 likewisemounted in said base for permitting adjustment of the motor speed.

A similar switch handle 17a'controls the operation of the refrigeratingmechanism, by controlling the supply ofpower to a suitable clutch. Theclutch (not shown) may be one of the magnetic type, suitably arranged tobe drawn into position to engage motor shaft when the switch handle 17ais thrown into power-supplying position, the clutch being arranged todisengage the compressor shaft from the motor shaft when the handle 17ais in cut oil position. The design and opera tion of such clutches beingwell known, it is not thought to be necessary to show and describe it indetail. V A condenser coil-4 may be mounted Within the compartment onone side or the other of the fan 3, said coil preferably being disposedadjacent the end wall 7 and between the fan 3 and said end wall, andbeing connected to the compression or outlet end 46 of the compressor 6by means of pipe 45. A reservoir or tank 9 attached to the casing '40is, adapted to communicate with the con- 2 and 8 being interconnected. Apipe 21 preferably interconnects the evaporation coil tank' 9 containingthe condensed fluid such as ammonia, sulphur dioxide or the like.Saidevaporating coil is adapted to be connected to thesuction end 18a ofthe rotary compressbr as by a pipe 18. An expansion valve 27 interposediii the pipe 21 is adapted to permit expansion and evaporation of thecondensed liquid coming from the condenser coil 4 and tank 9, theevapora tion at reduced pressures taking place in said coils 2, 8 wherebheat is absorbed from the surrounding air or supplying the latent'heatfor the evaporation, as is well known in the art.

For permitting effective circulation of air through the device, rearwall 7 is provided with openings 23 in the upper port-ion thereair tocirculate around and cool the motor 5.

and drained thru tube 32a in the lower por tion of said casi fig.Obviously, when the condenser is water cooled, the casing openings 23,23a and 26 may be closed by any suitable shutters, and the fan 3removed. A flexible outlet pipe 33'of suitable diameter attached to theupper portion of the casing 40 adjacent the end wall 7 thereof, mayserve as a conduit for exhausting warm, air from within the casing tothe outer air or the outside of the room in which the 'cooler is placed.I

It will now be readily understood that upon movement of the switch blade17 for starting the operation of the motor 5, and

upon movement of the switch blade 17a, the

culated underv higher pressure to the conv denser coil 4, said fluidbeing cooled in said coil by means of the fan blades 3 and Water coolingmeans to a temperature below the boiling point of said fluid at thehigher pressure. Some of the substance in the condenser will hencecondense into liquid as shown at 15 in the drawing. evaporator coils 2,8, obviously being at reducedv pressure (being connected to the suctionside of the compressor) will have a low boiling point and hence thesubstance passing through the expansion valve 27 will evaporate. Theevaporation of the liquid passing into the coils 2 and 8 will thus coolthe air s urrounding the fan blade 1, thus causing "cooled air to becirculated through The substance in the the room. As shown in Figs. 4and 5 of the drawing, the evaporating or cooling coil or pipe 2 may bearranged in'back only of the fan l so that said coil will not interferewith the flow of air in front of the fan.

In buildings where a refrigerating pipe line has been installed, theevaporating or cooling pipe may be suitably arranged with respect to anelectric oscillating fan of usual construction for circulating cooledair in various directions. In loft or office buildings Where more thanone fan is to be operated, rotary means other than the motor 5 may beused to operate all of said fans. Obviously, the condenser may bedetached from the central shaft and mounted at a higher level in theroom and fan 3.

ated by a single motor means, the entire unit being adapted to oscillatefor effectively cirvculating' cool air over a comparatively large area.

It will thus be seen that there-is provided a device in which theseveral objects of this invention are achieved, and which is welladapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention,and as various changes might be made in the embodiment set forth, it isto be understood that all matter herein set forth or shown in theaccompanying drawing is to be interpreted as illustrative and not in alimiting sense.

' Having thus described my invention, I .claim as new and desire tosecure by Letters Patent:

1. Apparatus of the character described comprising .a motor, a fanoperated by the motor, for directing an air current and means forcooling said air current including a compressor mounted coaxi'ally withsaid motor, and an evaporating coil having a plurality of turns therein,part of the turns being arranged in front of the fan and part of theturns behind the fan.

' 2. A device of the character described comprising an electric motorhaving a central shaft, a fan mounted on said shaft, refrigerator .meansincluding a rotary compressor mounted on said shaft and actuated by themotor, and an evaporating coil arranged adjacent the fan and on bothsides thereof.

3. In apparatus of the character described,

in combination, an electric motor having an axial rotatable shaft, a fanmounted on said shaft, refrigerating means for cooling air circulatedsaid fan including a compressor operatively connected to the motor, andevaporating coil adjacent the fan, and a condenser coil remote from thefan, and means for oscillating said motor.

4. A device of the character described com prising a base, a casingmounted on said base for pivotal movement, a motor having an axial shaftmounted within said casing, refrigerating means within said casing,actuated by said motor, fan means mounted on said shaft, and means foroscillating said cas- A device of the character described comprising amotor having a central shaft, a fan mounted on said shaft andrefrigerating means including a compressor operatively connected to saidshaft and actuable thereby, an evaporating coil adjacent the fan, acondensing coil, and conduits connecting the co'ls to the compressor,said motor and re frigerating means being oscillatory as a unit.

6. A device of the character described comprisin a base, a casingmounted thereon, a plurality of partitions mounted transversely of saidcasing forming compartments, a motor mounted in one of saidcompartments,

refrigerating means mounted in other of said compartments and means foroscillating the caszin relatively to the base.

in combination, a base, a casing mounted thereon, a plurality of heatinsulating partitions mounted transversely of said casing dividing sameinto a plurality of compartments,

an axial shaft extending through'said compartments, a motor in one ofsaid compartments mounted on said shaft and adapted to rotate the same,a rotary compressor in an other of said compartments and actuableibysaid shaft, and in another of said'compartby said shaft, a fan inanother of said compartments and a condenser associated with i saidcompressor adjacent said fan.

' 9. In apparatus of the character described, the combination with amotor having an axial rotatable shaft extending from the opposite endsthereof, of fans mounted on said extending ends of saidshaft, said fansbeing arn apparatus of the character describedp ranged for directing aircurrents in opposite directions, refrigerating means comprising acondenser adjacent one of said fans, and an evaporator adjacent theother of said fans, and means for oscillating. said shaft about an axisother than the axis of the shaft.

10. The combination with a fan, of means for oscillating said fan aboutan axis other than the axis of rotation thereof, and a refrigeratingunit arranged adjacent the fan and oscillatorvtherewith for cooling theair surrounding the fan, whereby the fan projects a stream of cooled aircontinuously in different directions. I 4 11. The combination of arevoluble fan, means for oscillating said fan for directing the currentof air projected by said fan in different directions, and arefrigerating unit associated with said fan and oscillatory therewithfor cooling the air about the fan. i

12. In apparatus of the character de scribed, a casing, a condenser coilat one end of the casing, venting means for said casing including anoutlet pipe for venting that part of the casing surrounding a coil andincluding openings at other parts of the casing, a fan at the other endof the casing, an evaporating coil surrounding the fan, a compressor inthe casing interposed between said coils.

and means between said coils for rotating the fan and the compressor.

13. In apparatus of the character de- I scribed, a casing, a condensercoil at one end of the casing, a fan at the other end of the casing, anevaporating coil surrounding the fan, a compressor in the casinginterposed between said coils, means between said coils for rotating thefan and the compressor, and 10 means for oscillating the casing wherebythe air cooled by theevaporating coil is: projected by the fan indifferent directions.

14. In apparatus of the character de scribed, a casing, a fan at one endof said casing, an evaporating coil surrounding the fan,

-means in the casing for evaporating fluid in said coil and forcirculating said fluid, and means'for oscillating the casing.

15. In apparatus of the character dego scribed, a casing, afan at oneend of the casing, an evaporating coil adjacent said fan, a motor in thecasing, refrigerator elements in the casing connected to the coil, oneof said elements being actuated by the motor, and

means for oscillating the casing and the parts carried thereby as aunit.

16. An apparatus of the character described, in combination, an electricmotor having an axial rotatable shaft, a fan mounted so on said shaft,refrigerating means for cooling air circulated by said fan including acompressor operatively connected to said motor, an evaporating pipedisposed adjacent to and behind said fan, and a condenser remote fromsaid fan, and means for oscillating said motor.

17. An apparatus of the character de scribed, in combination with amotor having an axial rotatable shaft extending from the 40 oppositeends thereof, and fans mounted on I said extended ends ofsaid shaft,said fans being arranged for directing air current in oppositedirections, refrigerating means comprising a condenser adjacent one ofsaid fans,

and an evaporator adjacent the other of said fans, said condenser andevaporator being located between said fans and said motor, and means foroscillating said shaft about an axis other than the axis of said shaft.

Signed at New York city, county of New York, State of New York, this21st day of January, 1932.

' MORRIS BERMAN.

